<!DOCTYPE html>
<html>
<head>
	<title></title>
	<style type="text/css">
		[title]{
			font-size:40px;
			text-decoration: line-through;
		}
		[title=haha]{
			text-transform: uppercase;
		}

	</style>
</head>
<body>
<h2>Demo</h2>
<h1 title="Hello world">Hello world</h1>
<a title="haha" href="#">zzzz</a>
</body>
</html>